for anyone considering this product. Get a cheap air compressor. will last longer and is more powerful. Sure this is portable, but with only 500 charges* you're better off with something more long term.

Go to your local hardware store, pick out the cheapest air compressor and use it instead. heck get a cheap airbrush gun while you're at it. now its useful for more than one thing.

The ONLY caveat to using an air compressor is that you need to get a filter to keep from blowing water and/or (depending on type of compressor) oil all over whatever you are dusting. Condensation collects in the tank/lines and you can end up with a brief high speed vapor mist if you aren't paying attention. Oil can be due to the lubrication requirements of the compressor and/or tools you use.

If you get a small one and are worried about water condensation empty tank of all air and refill. Any built up water residue will be expelled with the emptying of the tank and a small one won't take long to refill itself.

If you are STILL worried have some isopropyl alcohol on standby and make sure power is not connected to whatever it is you're cleaning.